Dies and punches for making hexagonal nuts.



PATENTED FEB. 12; 1907.

DUNHAM. 5113s AND PUNOHES FOR MAKING- HEXAGONAL NUTS .APBLICATION FILED FEB. 7, 1905.

Nth. 848,8?5.

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GEGRGE DUNE Jill, OF UNIONVILLE,

SDlES AND PUNGHEL'E? Mf lKlWG H" Specification of Letters Patent.

GO'NNECTICUT.

.QAGGNAL NUTS.

Patented Feb. 12, 1907,

Application sud February 2 .1005. Serial 1%. 244,572,

To (all whmn it nuty concern:

Be it known that .i, Gee-non Del citizen of the United States, residing Unhn. ville, in the county ol? llart'lorcl end state o1;

Connecticut, have invented ceititinnew and 1 l useful improvements Dies end Punches for Blinking l-iexegonal N uts, of itllieh lowing is a specification.

My invention relates to di s and punch es [or making ad the objects of my hn c facilitate the inz'tnul ecture ol l e nuts and at the some time produce a. smooth and at trnctive nut.

in the nccoinpnnying drawings, l a lace View of the porn-hes and theii l ig. is an elevation of the said puncl holder viewed from the upper side the position shown in Fig. 1, togeth sectional \"iCW ol the dies. 3 is n plan view of a bar ol 1ron,illustrztt1ng the action of the said dies and punches.

designates any suitable punch-holder in Which to inount the-several puncnes and by means ol which holder the punches may be sectl'ied in a press or nutmmldng machine.

As shown, the several punches are secured within suitable sockets in. the punch-holder lhe rouiul- A. by n'icnns oi" set-screws 21 hole punch F is show it the l shearing, trimming, or finish shown... at the ight, e. distnnu I l round-hole punch equal to the Wltllil hexagonal blanks measured from corner to corner, whereby the centcrsol' the punvhes 1 end (i represent the centers of l 1 l l l l l l l l l'ourth of tour cmisecutiye nut- Wny Letween the punch s notchlug-punches7 7 h. tie-lly shnped sides at an angle of sixty dcgrecs to the line l'roi'n center to center ol the punches and (3 .so tS to cut on t tron; opnosito ed 'as ol' the bin or stocl. 33, two suostnntislly V-slutped notches 7 nctweeu two ndjoiningn.uthlunl The seve al di s are formed in the die block or phat l5, r id as the two said dies are of the some (ZOlIiLHII ZLH the, punches the lace view oi the punt-he, shown in i 1 also correctly lctBi'USuDtS ol the several dies to which t seid nunchcs u re tittedv The die plate or block ll, in. which the several. dies arc l'ornicd, may be titted .o and held within any ordinary die-holder.

"lhe round-lmlc die 5 and the she-s inger lh 'shii he 6 are shown by lull lines in h 2, wliiie one oi the dies for one ol. the notching-pnnches is indicated in broken lines in said Fig. 2. The distance from center to center. of the notching and finishing-dies is equal to hell the Width. of the finishing-die plus it given number of blanks for the said finishingdies. [as shown, it is one-hell the width ol the said die plus the width ol one nut-blank. The opposite V-Sl'lfl pod d ice and their punches are set so closely together that they would. suhstnnti y meet each other were it not for their trun led zipices. By means of these truncated. eniccs, whichcut in a direction out oi nlincnu'ant with the inclined sides ol the dies, :1. tOYU'lCCtli portion is formed on the her, as shown at LLKC ght-l'mnd end of Fig. 3, while at the szuue time the main port' the Sttl l sides are on lincsthnt would, wit hold; the said spices, substantially sever the her.

The 3511* or stock, Fig. 3, is fed in l'roin the left and first operated upon by the round hole die and punch to punch the hole 1, then fed longitudinally the width of one nutfor punching the round 2 and at the same time have the ti'iotchhig-nunches shear oil the two front corners of the her, as shown EU; the iight-hzuid end ol the her in Fig. 3. At the next forward feed and action of the dies and punches the round hole 3 and the pair of notches 7 are cut, thereby nearly completing the'ldunking of a hexagonal nut 01 which the center, but leaving a.

the lies and punches another round. hole is j'mncliod, another pair of notches formed, i w

1 completely sovcrs the blnnk o'l" which. the

do the sheurh or finishing die and punch hole 1 is \llO center. The blank so cut oil was bclore severing so nearly the form of a hexagonal nut that only a. thin slin-ving has to bc lrinuncd or sheared oll from its sides, and the neck is so small that it cuts oil' reed-v ily and smoothly.

it. is apparent that some :lutnges from the spcci'lic construction. herein disclosed nuty be nuule, 11nd thorcloro I. do not Wish. to he untharstood as limiting myself to the precise form of construction shown and described, but desire the liberty to make such changes in working my invention may l'nirly come within the spirit and scope of the same.

1 claim my invention 1. in a set of dies and punches for making hexagonal nuts, the combination of e finish- "1e .e liiwi ions an angle cone said finishing 11in -pnnehes w iicsaiii i iii i lieii (ins and. nnnc :s V i inicn to e hing b from each other iii/i1 hi" the said bin 5 given number of nut s and. pniche the cenihl of hemigcnel Fm. e winch eei'iespez I .-es and as;

D set so as imicl 1 each other equal to one-half the Width of said ii-elation to' eaehotherfthe said dies and ice being located with the centers 0? the n and blanking (hes a distance h'mn naming-die, pins the Width 0f a given number 01 nut-bianks.

3. In (lies and punches for making hexagwni] nuts, the cenibination of a finishing 01' blanking die of a hexagonal form in plan m.- vviih n punch of corresponding form, a

piiii' of notching-diesend coaeiing punches in the form of an acute-angled V with 2L iinncnted. apex, [he said dies being a1 winged icgelhei' fer nctehing the opposite edges; of e nif mom] on lines corresponding with the ides of {WC adjoining nub-blanks unite one-half the Width of" said 13 l b 7 pins the Wldih of a given number 01 nn hinnks GEORGE D UN Pill i.

n a MeDonenen, .x/ HEKELES R, Moses.

Wiih the said truncated epices at the 

